Chemistry, 13.04.2020 12:28 LilyFlower227

Zn (s) + H2 SO4 (aq) → Zn SO4 (aq) + H2 (g) is an example of-
A. change of colour
B. evolution of gas
C. precipitation reaction
D. endothermic reaction

pls anwer fast

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 16:00, yfnal3x

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

Answers: 2

continue

Chemistry, 22.06.2019 17:30, latezwardjr15

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j

Answers: 2

continue

Chemistry, 22.06.2019 18:00, shawn423

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate

Answers: 3

continue

Chemistry, 22.06.2019 23:30, billybob8514

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.

Answers: 1

continue

You know the right answer?

Zn (s) + H2 SO4 (aq) → Zn SO4 (aq) + H2 (g) is an example of-
A. change of colour
B. evo...